When victims of a new serial killer are found with butterflies on their bodies, expert FBI forensic examiner and entomologist Fiona Red is summoned to find the link between the insects, and to outwit this killer before he strikes again...
Fiona Red, a brilliant but quirky FBI loner, spends most of her time in the lab or at crime scenes. She comes from a family used to being around death and bodies, her parents having run a funeral parlor, and she would have run the family business if not for a tragedy in her past: her sister was abducted when she was a teenager, and never found.
Fiona remains determined to crack her sister's case. But in the meantime, as an FBI agent, she applies her brilliance to catching killers and cracking cases that no one else can, as bugs are the first visitors to dead bodies.
With her FBI partner out in the field, Fiona expects to stay behind the scenes.
But Fiona, obsessed with catching killers, takes it one step too far, and may just find herself in the crosshairs of a killer herself.
